
2-27
MT4C1004J 883C
REV. 11/97
DS000021
Austin Semiconductor, Inc., reserves the right to change products or specifications without notice.
MT5C1005 883C
256K x 4 SRAM
4 MEG x 1 DRAM
AUSTIN SEMICONDUCTOR, INC.
MT4C1004J 883C
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Notes: 6, 7, 8, 9, 10, 11, 12, 13) (-55
°
C
≤
T
C
≤
125; V
CC
= 5V
±
10%)
AC CHARACTERISTICS
PARAMETER
Random READ or WRITE cycle time
READ-WRITE cycle time
FAST-PAGE-MODE READ
or WRITE cycle time
FAST-PAGE-MODE READ-WRITE
t
PRWC
cycle time
Access time from
/
R
/
A
/
S
Access time from
/
C
/
A
/
S
Access time from column address
Access time from
/
C
/
A
/
S precharge
/
R
/
A
/
S pulse width
/
R
/
A
/
S pulse width (FAST PAGE MODE)
/
R
/
A
/
S hold time
/
R
/
A
/
S precharge time
/
C
/
A
/
S pulse width
/
C
/
A
/
S hold time
/
C
/
A
/
S precharge time
/
C
/
A
/
S precharge time (FAST PAGE MODE)
/
R
/
A
/
S to
/
C
/
A
/
S delay time
/
C
/
A
/
S to
/
R
/
A
/
S precharge time
Row address setup time
Row address hold time
/
R
/
A
/
S to column
address delay time
Column address setup time
Column address hold time
Column address hold time
(referenced to
/
R
/
A
/
S)
Column address to
/
R
/
A
/
S lead time
Read command setup time
Read command hold time
(referenced to
/
C
/
A
/
S)
Read command hold time
(referenced to
/
R
/
A
/
S)
/
C
/
A
/
S to output in Low-Z
Output buffer turn-off delay
W
/
E command setup time
-7
-8
-10
-12
SYM
t
RC
t
RWC
t
PC
MIN
130
155
40
MAX
MIN
150
175
45
MAX
MIN
180
210
55
MAX
MIN
220
255
70
MAX
UNITS NOTES
ns
ns
ns
65
70
85
140
ns
t
RAC
t
CAC
t
AA
t
CPA
t
RAS
t
RASP
t
RSH
t
RP
t
CAS
t
CSH
t
CPN
t
CP
t
RCD
t
CRP
t
ASR
t
RAH
t
RAD
70
20
35
35
80
20
40
40
90
25
45
45
120
30
60
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
14
15
70
70
20
50
20
70
10
10
20
5
0
10
15
10,000
100,000
80
80
20
60
20
80
10
10
20
5
0
10
15
10,000
100,000
100
100
25
70
25
100
12
12
25
5
0
15
20
10,000
100,000
120
120
30
90
30
120
15
15
25
10
0
15
20
100,000
100,000
10,000
10,000
10,000
10,000
16
50
60
75
90
17
35
40
50
60
18
t
ASC
t
CAH
t
AR
0
15
50
0
20
60
0
25
70
0
25
85
ns
ns
ns
t
RAL
35
40
50
60
ns
t
RCS
t
RCH
0
0
0
0
0
0
0
0
ns
ns
19
t
RRH
0
0
0
0
ns
19
t
CLZ
t
OFF
t
WCS
0
0
0
0
0
0
0
0
0
0
0
0
ns
ns
ns
20
20
20
20
20
21
CAPACITANCE
PARAMETER
Input Capacitance: A0-A10, D
Input Capacitance:
/
R
/
A
/
S,
/
C
/
A
/
S,
W
/
E
Output Capacitance: Q
SYMBOL
C
I
1
C
I
2
C
O
MIN
MAX
7
7
8
UNITS
pF
pF
pF
NOTES
2
2
2